Home / 315,422.11-472,648.59-214,088.38

Finding the Fourth Proportional to 315,422.11, 472,648.59 and 214,088.38

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Solution

The fourth proportional to 315,422.11, 472,648.59 and 214,088.38 is: 320,803.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,422.11 : 472,648.59 = 214,088.38 : x
  2. Step 2: Convert to fraction form
    315,422.11/472,648.59 = 214,088.38/x
  3. Step 3: Cross multiply
    315,422.11x = 472,648.59 × 214,088.38
  4. Step 4: Simplify right side
    315,422.11x = 101,188,570,942.38
  5. Step 5: Solve for x
    x = 101,188,570,942.38/315,422.11
  6. Step 6: Final answer
    x = 320,803.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.